I know tools that help in identifying security vulnerabilities in source code (static analysis tools), like Findbugs for Java or Pixy for PHP, but I would like to know good free opensource tools that help in the task of documenting and following code when you are doing a manual source code review. It is interesting to be able to share the code commenting work between different testers/reviewers/developers/analysts.
Just another time: I'm not looking for static code analysis tools, I'm looking for tools that help the reviewer to do the manual review by making it easier to browse the code, write and share comments with other team members, follow coverage of the review, etc...